browserName=navigator.appName; 
browserVer=parseInt(navigator.appVersion);

  if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4))    
  version="n3";
  else
    version="n2";

  if (version=="n3")
   {
		pic1on= new Image(120,25); pic1on.src="../graphics/navbuttons/nav1_over.gif";  
     	pic2on= new Image(120,21); pic2on.src="../graphics/navbuttons/nav2_over.gif";	
		pic3on= new Image(120,21); pic3on.src="../graphics/navbuttons/nav3_over.gif";
		pic4on= new Image(120,21); pic4on.src="../graphics/navbuttons/nav4_over.gif";
		pic5on= new Image(120,21); pic5on.src="../graphics/navbuttons/nav5_over.gif";
		pic6on= new Image(120,21); pic6on.src="../graphics/navbuttons/nav6_over.gif";
		pic7on= new Image(120,21); pic7on.src="../graphics/navbuttons/nav7_over.gif";
		pic8on= new Image(120,21); pic8on.src="../graphics/navbuttons/nav8_over.gif";
		pic9on= new Image(120,21); pic9on.src="../graphics/navbuttons/nav9_over.gif";
		pic10on= new Image(120,21); pic10on.src="../graphics/navbuttons/nav10_over.gif";
		pic11on= new Image(120,21); pic11on.src="../graphics/navbuttons/nav11_over.gif";
		pic12on= new Image(120,21); pic12on.src="../graphics/navbuttons/nav12_over.gif";
		pic13on= new Image(120,21); pic13on.src="../graphics/navbuttons/nav13_over.gif";
		pic14on= new Image(120,21); pic14on.src="../graphics/navbuttons/nav14_over.gif";
		pic15on= new Image(120,21); pic15on.src="../graphics/navbuttons/nav15_over.gif";
		pic16on= new Image(120,21); pic16on.src="../graphics/navbuttons/nav16_over.gif";
		pic17on= new Image(120,21); pic17on.src="../graphics/navbuttons/nav17_over.gif";
		pic18on= new Image(120,21); pic18on.src="../graphics/navbuttons/nav18_over.gif";
		pic19on= new Image(120,21); pic19on.src="../graphics/navbuttons/nav19_over.gif";
     
     
     	pic1off= new Image(120,25); pic1off.src="../graphics/navbuttons/nav1_out.gif";
     	pic2off= new Image(120,21); pic2off.src="../graphics/navbuttons/nav2_out.gif";
		pic3off= new Image(120,21); pic3off.src="../graphics/navbuttons/nav3_out.gif"; 
		pic4off= new Image(120,21); pic4off.src="../graphics/navbuttons/nav4_out.gif"; 
		pic5off= new Image(120,21); pic5off.src="../graphics/navbuttons/nav5_out.gif"; 
		pic6off= new Image(120,21); pic6off.src="../graphics/navbuttons/nav6_out.gif"; 
		pic7off= new Image(120,21); pic7off.src="../graphics/navbuttons/nav7_out.gif"; 
		pic8off= new Image(120,21); pic8off.src="../graphics/navbuttons/nav8_out.gif"; 
		pic9off= new Image(120,21); pic9off.src="../graphics/navbuttons/nav9_out.gif"; 
		pic10off= new Image(120,21); pic10off.src="../graphics/navbuttons/nav10_out.gif"; 
		pic11off= new Image(120,21); pic11off.src="../graphics/navbuttons/nav11_out.gif";
		pic12off= new Image(120,21); pic12off.src="../graphics/navbuttons/nav12_out.gif";
		pic13off= new Image(120,21); pic13off.src="../graphics/navbuttons/nav13_out.gif";
		pic14off= new Image(120,21); pic14off.src="../graphics/navbuttons/nav14_out.gif"; 
		pic15off= new Image(120,21); pic15off.src="../graphics/navbuttons/nav15_out.gif";
		pic16off= new Image(120,21); pic16off.src="../graphics/navbuttons/nav16_out.gif";
		pic17off= new Image(120,21); pic17off.src="../graphics/navbuttons/nav17_out.gif";     
		pic18off= new Image(120,21); pic18off.src="../graphics/navbuttons/nav18_out.gif"; 
		pic19off= new Image(120,21); pic19off.src="../graphics/navbuttons/nav19_out.gif";
   }

function lightup(imgName)
 {
   if (version=="n3")
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
    }
 }

function turnoff(imgName)
 {
   if (version=="n3")
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
 }
 
function openNewWindow(fileUrl) 
{
	var targetName='Ordforklaringer';
 	// set the width and height
 	var width=350;
 	var height=400;
 	// set window position
 	var from_top=0;
 	var from_left=0;
 	// set other attributes
 	var scrollbars='yes';
 	var resizable='yes';
 	window.open(fileUrl,targetName,"width="+width+",height="+height+",left="+from_left+",top="+from_top+",resizable="+resizable+",scrollbars="+scrollbars+",status=0,menubar=0,toolbar=0,location=0,directories=0");
}

function openNewWindowQuiz(fileUrl) 
{
	var targetName='Quiz';
 	// set the width and height
 	var width=500;
 	var height=450;
 	// set window position
 	var from_top=0;
 	var from_left=0;
 	// set other attributes
 	var scrollbars='no';
 	var resizable='no';
 	window.open(fileUrl,targetName,"width="+width+",height="+height+",left="+from_left+",top="+from_top+",resizable="+resizable+",scrollbars="+scrollbars+",status=0,menubar=0,toolbar=0,location=0,directories=0");
}